"It's such a communal rite of passage in the UK and there's this communal spirit," Win Butler told Zane Lowe. "It'll be at a point of touring when we're scary good. We're super excited to strap on our wellies and let it rip."

Butler also guaranteed good weather for the gig. "The Friday is going to be a gorgeous, Californian sunshine day - if it's not, we'll refund your ticket," he told Lowe.